Can't understand why so many hate an insignificant club like Arsenal? It's not even worth your hate.
To add to what Bianconero_Aus said:
* Self-delusion that they play "beautiful football", as if that means shit
* Hiding behind clubs like Man Utd to explain away their years of futility and failure
* Always getting paired with crap clubs in the CL group stages so they can pad vanity statistics before crumbling to dust at the first sign of any real competition
* Like most EPL clubs, most seasons treat quality defensive play as "boring" and somehow below them... even if they couldn't properly defend themselves against 11 paraplegics with Down's syndrome
* General delusions of grandeur with nothing to back them up